PowerQUICC ProcessorsのトピックRe: Internal Loopback issue in USB with MPC8555E https://community.nxp.com/t5/PowerQUICC-Processors/Internal-Loopback-issue-in-USB-with-MPC8555E/m-p/220151#M189 <HTML><HEAD></HEAD><BODY><P>Please find attched simple example for MPC8555 USB which uses TRBD mode, it's not loopback mode but can be changed to.</P></BODY></HTML> Tue, 29 Jan 2013 09:19:57 GMT lunminliang 2013-01-29T09:19:57Z Internal Loopback issue in USB with MPC8555E https://community.nxp.com/t5/PowerQUICC-Processors/Internal-Loopback-issue-in-USB-with-MPC8555E/m-p/220150#M188 <HTML><HEAD></HEAD><BODY><P>We are using an in-house Power PC board with MPC8555E processor.We are currently developing drivers for USB on bare</P><P>board(Non-RTOS).</P><P></P><P>We started with testing Internal Loop-back for USB.We have written code taking</P><P>reference from MPC8555E User Manual, where a sample procedure has been given for</P><P>Configuring USB Host Controller for Internal Loop-back.Also, we referred U-boot and</P><P>Linux code for this purpose.</P><P></P><P>We are not able to achieve loop-back.You are requested to guide in this matter at</P><P>the earliest.</P><P><SPAN class="mce_paste_marker"><BR /></SPAN></P></BODY></HTML> Thu, 03 Jan 2013 13:51:18 GMT https://community.nxp.com/t5/PowerQUICC-Processors/Internal-Loopback-issue-in-USB-with-MPC8555E/m-p/220150#M188 srijithr 2013-01-03T13:51:18Z Re: Internal Loopback issue in USB with MPC8555E https://community.nxp.com/t5/PowerQUICC-Processors/Internal-Loopback-issue-in-USB-with-MPC8555E/m-p/220151#M189 <HTML><HEAD></HEAD><BODY><P>Please find attched simple example for MPC8555 USB which uses TRBD mode, it's not loopback mode but can be changed to.</P></BODY></HTML> Tue, 29 Jan 2013 09:19:57 GMT https://community.nxp.com/t5/PowerQUICC-Processors/Internal-Loopback-issue-in-USB-with-MPC8555E/m-p/220151#M189 lunminliang 2013-01-29T09:19:57Z